Quote:
Originally Posted by NSEGE
Back to my last question, is there a way to tell what rating the recoil spring by visual inspection?....length, # of coils, diameter of wire???
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Not really.
When the pistol is shooting / cycling fine, take note of where the empty cases are landing on the ground.
More than 2 meters ( 6 feet ) the recoil spring is too light and frame damage could occur if a recoil buffer is not used.
Less than 1/2 a meter (2 feet) the spring is too heavy and reliability could be affected.
Between 3 and 5 feet is good.
It shows that there is enough recoil energy to extract and eject the case reliably.
However, heavier springs give more recoil control = better accuracy. So it is a balancing act between ammo energy vs the dynamic operating forces of the pistol, to get it "just right".
other areas that affect this are;
slide weight ( should not be an issue on a m41. no red dot mounted etc. )
slide friction
recoil spring friction on its guide rod
slide over hammer friction ( cocking force )
hammer spring weight
hammer spring friction ( on its guide rod )
Hammer friction in the frame
A note on recoil springs ( search it up, there is a detailed thread here on this subject )
After market ( wolfe ) springs are only "finished" on one end, with the other end just the raw open coils.
It is VERY important to fit ANY RECOIL SPRING with the "finished" end ( closed (flat) coils and ground flat ) into the hole in the slide.
There have been instances of springs being fitted with the "raw" end inserted into the hole in the slide, and the end of the free coil wire working its way between the guide rod and the hole on the slide, causing major jamming, requiring the services of a gunsmith to rectify.